To provide a broaching machine which reduces an unbalanced load acting on ball screws, by adopting a structure to allow a table have a moving body guide for supporting the table.

The broaching machine 10 is equipped with a broach 11, arranged in a vertical direction for use to cut the inner surface of a workpiece 29; a through-hole 12 penetrating through from un upper surface to a lower surface and having the broach 11 inserted therein; a nearly tabular moving body 13 holding the workpiece 29; a pair of ball screws 14 supporting the moving body 13 to be vertically movable along the broach 11; and a frame 15 formed to surround the broach 11, the moving body 13 and the pair of ball screws 14. In the frame 15, a moving body guide 20 is guided by guide attaching plates 15g provided between the broach 11 and the ball screws 14.